US1910443A - Propeller - Google Patents

Description

Patented May 23, 1933 UNITED s'r WILLIAM n. MoBLEY, or MIAMI, FLoainA, Assreivon or oNE-HALF To F. w.

. BnAnsBY, or LoUIsvILL-n, KEnrUcKY p i PROPELLER Application med May 14, 1931. seriai m. 5314-16.

' andr in .propellers, pumps, compressors, fans and the like.

A principal object of the invention is to obtain a greater and more useful reaction' and propulsive effect from the Weight of the fluid in which my invention is used.

`Also, as in pumps and thelike, to pass the fluid rapidly through the device and so as to overcome the normal resistances.

In order to make the invention more clear-ly understood I have shown in the accompanying drawing means for carrying it into practical efiect, without limiting the invention to all of the details illustrated.

In said drawing,

Fig. 1 is a front perspective view of a propeller, or fluid forcing device, embodying the invention.

Fig. 2 is a vertical section on a plane transverse to the aXis, on line II-II of ETO re Fig. 3.

Fig. 3 is a Vertical sectional view on a plane substantially along the axis on line III-III of Fig. 2.

Fig. 4 shows in a front view the casing -3'3 fiXed and the impellers revoluble therein.

Fig. 5 is a side view showing an elongated casing.

Referring to the drawing, 1 is a bearing or sleeve forming the aXial portion of the 33 propeller and by which it may be mounted on any suitable power shaft. 2 indicates fluid-impelling members in the form of radial blades extending from said sleeve and east therewith or strongly attached thereto. 43 3 indicates a cylindrical casing attached to the outer parts of said blades. 4 indicates fiuid-impelling members in the form of front plates attached to the front parts of said casing and blades. I have indicated two of '13 said plates but this number may bo varied as may be desired. 5 indicates rear plates attached to the rear parts of the casing and blades and arranged to alternate with the front plates 4, so that a rear blade is in line with a space between front plates. The

said front and rear plates are arranged substantially transverse to the propeller axis. This arrangement forms fluid pockets `with front opcnings 6 through Which air in the case of a propeller,`enters along the rear 5 (with reference'to the direction of rotation) or trailing faces of the blades vand is compressed by centrifugal force against and by the front face of the next bladeand within the casing and finds' its exit at a rear opening 7.

Each pocket has at its advance portion a front Opening and at its trailing portion a rear Opening, the rear plates being arranged opposite 'to the front openings.

The action of the advance edge of each blade is to grasp or cup the air which is then acted upon centrifu'gally and forced under pressure rearwardly and out of the propeller asV described, air being-'induced into the openings 6. The trailing edges of the rear 'plates induc'e a rearward` exhaust from the air pockets.

The result of this Operation is to produce a'partial vacuum in front of the propeller with relative low pressure on the front faces of the plate, with relative high pressure from compression' of the air' at the rear4 faces of the front plates, and relative low pressure on the front faces ofthe rear plates, and augmented atmospheric pressure on the rear faces of the rear plates. The result is a strong propulsive force forward in the directionof the aXis of the propeller, which is ilnparted to the shaft and vehicle parts attached thereto.

In the oase of a pump or air compressor, the Operation is similar, the 'fluid being caused to pass through the device to be collected as may be desired.

A shaft may take the place of the sleeve 2 and be cast in one piece with the other parts.

The casing may be-ixed so as not to rotate, in which case the r'otary blades and pl-ates are separatefroin and revoluble in said casing, as shown in Fig. 4;

The casing may-be considerably elongated (Fig. in which case it may be attached to the blades and plates or separate therefrom and non-rotary; and one or more sets of 100 blades and plates may be combined with the casing. In Fig. 5 I have shown a fixed casing having a front set of rotary blades and plates at a and a rear set of rotary blades and plates -at b.

By means of a oasing elongated rearwardly the air can be impelled into the casing at the front of an air or land vehicle and expelled ata point at the rear of the greatest diameter o'r transverse dimensions of said vehicle, so as to greatlyV diminish theresistance of the air to propulsion.

VVhile I have shown herein practical means for carrying my invention into effect, it Will be understood that the parts can be varied considerably in arrangement, shape and proportion without departing from the spirit of my invention.

-In the use of the described apparatus I perform fluid propulsion, meaning propulsion in and by lacting on a fluid, by forming, and rotating about an vaxis, alternate pockets of fiuid, by forcing fluid into said pookets at one front side of each pocket and inducing the flow of fluid into said pockets at another front side of each pocket, and directing rearwardly and discharging the fluid collected in said pockets.

VVhat I claim is:

1. In a propeller the combination of a casing, blades, and front and rear plates arranged transversely to the axis of the propeller, and forming fluid pockets, the advance portion of each pocket having an opening at its front and a said front plate at its trailing portion, the rear plate being arranged opposite to the front openings.

2. In a propeller the combination of an axial portion, radial blades extending therefrom, a casing at the outer ends of said blades, and front and rear transverse plates alternating with openingsto the interior of said casing, the blades being connected with the plates near the edges of the plates.

3. In a propeller for the uses described, the combination of an axia-l portion, fluidimpelling members having their surfaces arranged substantally parallel With the axis, and fluid-impelling members having their surfaces arranged at substantally right angles to the first mentioned surfaces, and a casing enclosing all of said members, said impelling members being attached together, the blades being connected with the plates near the edges of the plates.

4. In a propeller for the uses described, the combination of an axial portion, fluidimpelling members having their Vsurfaces arranged substantially parallel with the axis, and fluid-impelling members having their surfaces arranged at substantally right angles to the first mentioned surfaces, said axial portion and impelling members being attached together near the edges of the right angled impelling members and revoluble in said easing.

5.v In a propeller for the uses described, the combination of an axial portion, a casing, front and rear plates arranged between the axial portion and the casing and spaced apart in circular directions to leave openings, the front plates being substantally opposite to the rear openings and thev rear plates being substantally opposite tov the front openings, and radial blades extending from the trailing edges of the front plates to the'advance edges of the rear plates.

r6. In a propeller the combination of an axial portion, blades substantally radial and substantally parallel relative to the axis of the propeller and secured to said axial portion, front plates extending from the forward parts of the blades and in the direction of rotation and having rear openings between them, and rear plates extending from the rearward parts of the blades lop- 'positely to the direction of rotation and having rear openings between them, the front plates being rsubstantally opposite to the rear openings and the rear plates being substantally opposite to the front openings.

In testimony whereof I affix my signature.

IVILLIAM R. MOBLEY.

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